I am another who didn't get picked in a few cases.
I have been summoned multiple times. Sometimes I served, sometimes I was rejected. The last time I served was at traffic court. One case. The whole thing took an hour. The time before that, I got picked, and came back the next day to find out that the guy settled out of court. When they were picking the juries for that and other cases, there was girl in the pool that kept getting rejected. She was around twenty, and she came in jeans with rhinestones on them. She also had this really spaced-out look on her face the whole time. It was kind of a cross between an airhead and stoner. If you are hell-bent on getting out of jury duty, you might want to assume that look. But, I don't really want to encourage that. Jury duty can actually be really interesting. The only time I wouldn't want to do it is if I were to be sequestered for some big murder or other infamous trial.